Japanese Journal of Radiological Technology
Online ISSN : 1881-4883
Print ISSN : 0369-4305
ISSN-L : 0369-4305
Clinical Technologies
Usefulness of a Grid Using Fiber Interspace Material
Junki MurakamiMitsuhiro NakamaeMamoru Ueda
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2014 Volume 70 Issue 10 Pages 1154-1159

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Abstract

We had the opportunity to employ an anti-scatter grid, which uses fiber as the interspace material. The X-ray transmission rate of fiber is higher than aluminum, so we predicted that the use of a fiber grid would reduce radiation exposure. The purpose of this study was to evaluate the usefulness of the fiber grid. The physical characteristics and influence of focus-grid decentering were compared between the fiber grid and three kinds of antiscatter grids that use aluminum as the interspace material (Al grid). The contrast improvement factor and selectivity of the fiber grid was higher than the Al grid, and the Bucky factor of the fiber grid was lower. The interspace material and grid ratio also influenced focus-grid decentering. The results of this study suggest the potential for reduction of radiation exposure by the use of a fiber grid.

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© 2014 Japanese Society of Radiological Technology
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